Insole rib attaching machines



Aprll 24, 1962 s. P. LOTARSKI ET AL 3,030,644

INSOLE RIB ATTACHING MACHINES Filed May 12, 1960 4 Sheets-Sheet 1 Inventors Stephen PLotarski Francis R Spez'yhzf By their Attorney April 24, 1962 s p. LOTARSKI ET AL 3,030,644

INSOLE RIB ATTACHING MACHINES 4 Sheets-Sheet 2 Filed May 12, 1960 AP'ril 1962 s. P. LOTARSKI ET AL 3,030,644

INSOLE RIB ATTACHING MACHINES Filed May 12, 1960 4 Sheets-Sheet 3 iii A 324 7 0 L 28 Jersey Filed May 12, 1960, Ser. No. 28,626 Claims. (Cl. 12-20) This invention relates to machines for attaching strips to work pieces, and is illustrated herein as embodied in a machine for attaching ribbed strips to insoles to provide sewing ribs thereon, of the type disclosed in United States Letters Patent No. 2,898,614, granted August 11, 1959, upon an application filed in our names, as improved in accordance with the disclosure in United States Letters Patent No. 2,933,744, granted April 26, 1960, upon an application also filed in our names.

In accordance with usual procedure in attaching ribbed strips to insoles, except in the case of insoles for so-called sewed-seat work, the operation commences at the heel breast line at one side of an insole, where the leading end of a strip drawn from a source of supply is attached, then progresses along the margin of the insole at that side and, after rounding the toe end, continues along the margin at the opposite side to a point located at the heel breast line at that side of the insole. From the standpoint of good shoemaking practice and economy of material, it is desirable that the leading and trailing ends of the strip be attached to insoles of all sizes at uniformly predetermined points along the opposite margins of each insole. It will be appreciated, however, that such a result cannot be achieved without the exercise of considerable skill and close attention on the part of the operator, with consequent loss of the advantage of a high rate of production.

To enable the machine to produce this result automatically and without the intervention of the operator there are provided, in accordance with the present invention, means for locating each insole presented to the machine lengthwise with relation to a strip attaching and work feeding member, so that this member will attach the leading end of the strip at a predetermined distance from the heel end of each insole, and additional means for automatically stopping the operation of said member at a point on the insole which is in substantial alinement with the starting point.

As herein illustrated, there is provided a heel gage which is normally located in position to be engaged by the heel end of an insole placed on a work support with which the machine is provided, the gage being adjustable along the line of feed of the insole with respect to the strip attaching and work feeding member so as to locate insoles of various sizes in predetermined position for attachment of the leading end of a ribbed strip by said member. The heel gage is carried by means connected to a treadle which controls the starting of the attaching and feeding member, whereby depression of the treadle to start an attaching operation moves the gage to an out of the way position where it does not interfere with the feed of the insole.

When an insole is placed on the work support, and throughout a strip attaching operation, its edge face engages an edge gage located on the work engaging surface of the support. During the progress of a strip attaching operation, the edge gage is movable into various positions transversely of the work support to shift the insole thereon relative to the attaching and feeding member to vary the distance of the strip inwardly of the insole edge at selected points along the periphery of the insole. When the strip attaching operation reaches a predetermined point on the insole located at the heel breast line at one side of the insole substantially in alinement with the point 3,h3,h44 Patented Apr. 24, 1952 at which the leading end of the strip was attached at the opposite side, the strip attaching and work feeding member is automatically thrown out of operation, and at the same time a severing knife is automatically operated to sever the strip at the point of attachment of its trailing end.

For t-hus automatically stopping the operation of the strip attaching and work feeding member, the machine is provided with means substantially similar to means disclosed in United States Letters Patent No. 2,670,480, granted March 2, 1954, upon an application filed in the name of A. S. Clark. As in the machine of the Clark patent, the means referred to comprises a pair of fingers normally maintained in parallel relation and one of which is normally in contact with a self-closing microswitch carried by the other finger to maintain the microswitch open..

In the patented machine the two fingers occupy, throughout the major portion of a strip attaching cycle, a position just above the upper surface of the insole body inwardly of the rib. When the attaching operation along the margin of the insole opposite the margin Where the operation started reaches the shank portion, where the insole narrows, the fingers engage the top of the rib at the side of the insole to which the rib was first attached, and remain in engagement with the rib until the finger which is in contact with the microswitch drops off the rib, closing the microswitch and energizing a first solenoid connected to a two-part treadle rod, thereby disconnecting the two parts of the treadle rod to stop the operation of the strip attaching and work feeding member.

It has been found that with this arrangement, when a strip is attached to a very small insole or to an insole with a narrow, pointed toe, the finger which carries the microswitch is apt to engage the rib and be moved up, out of parallel relation with the other finger, thereby causing the microswitch to close and stop the attachment of the strip prematurely.

To remedy this defect the machine of the present invention is provided, in accordance with an important feature thereof, with means which normally maintain the rib engaging fingers in parallel relation to each other and at some distance from the upper face of the insole during the major portion of a strip attaching operation, and which are actuated, when the operation reaches a predetermined point along the margin opposite the margin to which the strip was first attached, to cause the fingers to be moved into engagement with the rib of the strip along the last named margin.

As herein illustrated, the finger which engages the microswitch carried by the other finger is connected to the armature of a second solenoid which is connected in an electrical circuit to a self-closing microswitch carried by the hand lever by which the previously mentioned edge gage is moved at determined times during the progress of an attaching operation to shift the insole so as to vary its widthwise position on the support relative to the attaching and feeding member. The microswitch is held open by contact with a stop carried by a member to which the hand lever is pivoted for heightwise swinging movement and which swings with the hand lever about a vertical axis. The hand lever is usually swung about said vertical axis first when the attaching operation reaches the ball line at that side of the insole at which the operation started to a position in which the edge gage is moved in one direction to shift the insole so as to cause the strip to be attached at or close to the insole edge. The hand lever may be swung at second time when the attaching operation reaches the tip line at the same side of the insole to a position in which the edge gage will be moved in the opposite direction, if it is desired to cause the strip to be attached at some distance from the insole edge around the toe portion, and again swung back to its first position when the operation reaches the ball line at the oppoa site side of the insole. When the hand lever is swung into these three positions, a latch carried by the hand lever engages in a recess formed in a member that is secured to the pivot about the axis of which the member to which the hand lever is pivoted swings, the latch being held in its three positions in the recess by a spring which normally urges the hand lever toward the member to which it is pivoted, so. as to maintain the microswitch in contact with the stop carried by that member. When the operation reaches the shank portion along the said opposite side of the insole, the hand lever is depressed, against the resistance of the spring, and swung back to it initial inoperative position, in which the latch engages a raised portion of the member in which the recess is formed, thereby locking the hand lever in its depressed position in which the microswitch carried by it is disengaged from the stop and closes automatically, energizing the solenoid and causing its armature to move downward to move the fingers into engagement with the rib of the portion of the strip already attached to the shank portion of the insole during the first part of the attaching cycle. The fingers remain in engagement with the rib as the attaching and feeding member continues to attach the strip to the final portion of the insole toward the heel end until, at a point which is on a line with the point of attachment of the leading end of the strip, the finger which is in contact with the microswi-tch carried by the other finger moves olf the rib and by closing the microswitch energizes the solenoid to cause the operation of the attaching and feeding member to come to a stop.

In accordance with another important feature of the invention, the same microswitch which efiects the automatic stopping of the strip attaching operation also energizes a third solenoid to operate a knife which severs the strip at the point of attachment of its trailing end.

The above and other features and advantages of the invention will be more clearly understood from the following description with reference to the accompanying drawings, in which:

FIG. 1 is a view in side elevation of a strip attaching machine embodying the invention;

FIG. 2 is a plan view, on a larger scale, of an edge gage and its operating means illustrated in FIG. 1;

FIG. 3 is a detail view, on a larger scale and partly in section, of a portion of the edge gage operating means shown in FIG. 1;

FIG. 4 is a perspective view, on a larger scale, of a hand lever and associated part for operating the edge FIG. 5 is a perspective view of means shown in FIG. 1 for engaging the rib of a strip attached to an insole;

FIG. 6 is a plan view of an insole and a ribbed strip attached part way around its margin, this view'showing the rib engaging means illustrated in FIG. 5 engaging the rib before the attachment of the strip to the final portion of the insole;

FIG. 7 is a detail view in front elevation showing the rib engaging means at the conclusion of an attaching operation; and

FIG. 8 is a wiring diagram of an electric circuit for controlling the operation of the rib engaging means, strip attaching and working feeding means and strip severing means.

The machine is provided with a base 20 (FIG. 1), on the top of which is bolted a head 22 on which are mounted the various operating instrumentalities of the machine. In a bracket or casting 24 fixed to the base 201 is mounted a vertically movable slide 26, to the upper end of which is secured a table 28 in which is mounted a roll 30 arranged to support and assist in feeding an insole I to which a strip S, drawn from a source of supply (not shown), is to be attached. The strip S is progressively fed into engagement with the margin of the insole and pressed thereagainst by a presser and feed foot '32, which also feeds the combined insole and attached strip. The

presser and feed foot 32 is secured to the lower end of a lever 34 pivoted at 36 to a slide 38 movable horizontally in an :arm 40 fixed to a sleeve 42 mounted on a shaft 44 which, through connections more fully described in United States Letters Patent No. 2,573,683, issued November 6, 1951, upon an application field in the name of Frederic E. Bertrand, imparts reciprocating vertical movements to the foot 32 to press the strip against the insole. The lever 34 is also pivoted at 46 to a bracket 48 on a. link 50 connected by an arm 52 to the shaft 44, whereby reciprocating horizontal movements are imparted to the foot 32 to feed the strip and insole.

A two-arm lever 54, pivoted substantially midway of its length on a shaft 56 supported in the machine head, has a pin-and-slot connection at its lower end to the slide 38. In the upper end of the lever 54 is provided a slot 58 through which extends a stud 60 carrying a roll 62 which is arranged to engage a cam portion 64 of a lever 66 fulcrumed about midway of its length on a shaft 68 supported in a bracket 70 secured to the machine head. The lever 66 is connected by a link 72 to the upper end of the upper section 74 of a two-part treadle rod, the lower section 76 of which extends through a bracket 78 secured to the machine head 22 and is connected at its lower end to a treadle (not shown). To the upper end of the lower treadle rod section 76 is secured a pawl 80 which is normally in engagement with a pawl 82 secured to the lower end of the upper section 74 of the treadle rod, whereby the treadle rod may move downwardly as a unit.

When the treadle rod sections 74, 76 are pulled down by depression of the treadle, the lever 66 is swung in a clockwise direction, as viewed in FIG. 1, and its cam portion 64, acting on the roll 62, causes the lever 54 to swing in the same direction about the shaft 56, against the resistance of a tension spring 83 attached at one end to a pin 84 projecting from the machine head 22 and at its opposite end to a pin 85 extending from the lever 54. Clockwise movement of the lever 54 causes the slide 38 to move to the left and the lever 34 to turn counterclockwise about the pivot 46 to move the presser foot 32 to the right, adjacent to the delivery side of a guide 86 through which the strip S is fed to locate the foot in po: sition to press the leading end of the strip against the margin of the insole. Depression of the treadle causes engagement of a clutch (not shown) to impart to the presser and feed foot 32 movements in an orbital path to attach the successive portions of the strip to the insole and simultaneously feed the strip and the insole.

The insole is located on the table 28 with the heel end toward the rear, that is away from the operator and, as earlier explained, except in the case of insoles for socalled sewed seat work in which a strip is attached around the entire insole, the attachment of the strip commences at the heel breast line at one side of the insole and progresses around the periphery of the insole to the heel breast line at the opposite side. In the case of an insole for the right foot, the operation isstarted at the outside heel breast line and terminates at the inside heel breast line; in operating on an insole for the left foot the attachment starts at the inside heel breast line and terminates at the outside heel breast line.

In the machine embodying the present invention, the precise point at which the presser and feed foot 32 will attach the leading end of the strip S to the insole I is determined by a heel gage identified by the general reference numeral (FIG. 1) and comprising a member 102 against which the heel end of the insole is located when the insole is introduced into the machine. The heel gage member 102 is secured bya screw 104 to a slide 106 movable forwardly and rearwardly in the direction of the feed of the work in a slideway 108 provided in a bracket 11!) pivotally supported on a pin 111 carried by the frame of the machine. The slide 166 has formed thereon rack teeth 112 which are engaged by a pinion 114 on the lower end of a spindle 116, to the upper end of which is fastened a knurled knob 118 by means of which the pinion may be rotated to move the rack slide 106 forwardly or rearwardly relative to the bracket 110 to adjust the heel gage member 102 in various positions to locate insoles of various sizes with relation to the lower end of the foot 32, to determine the point at which the leading end of the strip shall be attached.

A stud 119 (FIG. 1) extending laterally from a downwardly projecting lug 120 of the bracket 1'10 supports an internally threaded member 121 which receives the upper, threaded portion of a sleeve 122 in which is slidingly received a rod 123 having a yielding connection to the sleeve through a spring 124 attached at one end to a pin 125 in the sleeve and at its opposite end to a screw 126 projecting from a collar 127 on the rod 123. The rod 123 is pivotally connected at its lower end to one end of a lever 128 pivoted about midway of its length by a stud 129 to the machine base 20. The other end of the lever 128 carries a pin 130 engaging in a slot 132 formed in one end of a lever 134 pivoted at 136 to the base of the machine. The other end of the lever 134 has an open-ended slot 138 engaged by a pin 140 extending from a block 142 fastened by a screw 144 to the lower treadle rod section 76. With the levers 128, 134 in the position shown in FIG. 1, the heel gage assembly 100 is held elevated, with the gage member 102 in position to be engaged by the heel end of the insole I. When the operator depresses the treadle and the treadle rod section 76 is pulled down, the lever 134 is swung clockwise and the lever 128 is swung counterclockwise about its pivot 129 to move the heel gage assembly 100 downward about the pivot 111 to a position in which the gage member 102 will be out of the path of the insole during the strip attaching operation. When, at the end of the attaching operation, the treadle is released and the treadle rod section 76 moves up, the heel gage assembly 100 is returned to its initial position to locate a succeeding insole.

During a strip attaching operation, the insole is guided in its feeding movement along the table 28 by engagement of its edge face with an edge gage 160 (FIGS. 1 and 2) substantially similar in its general organization and operation to that disclosed in United States Letters Patent No. 2,326,119, granted August 10, 1943, upon an application filed in the name of Frederic E. Bertrand, to which reference may be had for a more detailed description. Referring to FIGS. 1 and 2, the edge gage 160 is secured by a screw 162 to a member 164, which is in turn secured by a screw 166 to an L-shaped member 168 having formed in its under side a groove 170 engaged by a tongue 172 on a slide 174 movable transversely of the machine in a slideway provided in the upper, forwardly and rearwardly extending portion of the table supporting slide 26 for movement of the edge gage forwardly or rearwardly on the table, as viewed from the side of the machine illustrated in FIG. 1. By means of a screw 176 extending through a slot 178 in the memher 168, the position of this member relative to the slide 174 may be varied so as to vary the initial position of the edge gage with relation to the center of the table for insoles of various sizes.

On a pin 180 extending upwardly from the slide 174 is pivotally mounted a block 182 which is engaged by the inner or rear bifurcated end of one arm 184 of a two-arm lever 186 mounted for swinging movement in a horizontal plane about a stud 138 mounted in a bracket 190 secured to the bracket 24 in which the table supporting slide 26 is mounted. The forward or outer bifurcated end of the other arm 191 of the lever 186 cugages a pivot block 192 (see also FIG. 3) mounted on a pin 194 projecting from a disk or head 196 formed on the upper end of a rockshaft 198 which is journaled 204 to the bracket 190. To the lower end of the shaft in a sleeve 200 fixed in a bracket. 202 secured by a screw 198 is clamped by a bolt 206 a collar 208 to which is pivotally connected by a pin 210 a hand lever 212 by which the rockshaft 198 may be turned to move the edge gage forwardly or rearwardly of the table. The hand lever 212 carries a latch 214 which extends upwardly through the collar 208 and which is arranged to engage different portions of the sleeve 200 to lock the edge gage in the different positions to which it is moved. The latch 214 is held in engagement with the sleeve by a compression spring 216 mounted on a rod 218 which extends upwardly through the hand lever and is connected at its upper end to the collar 208. The spring 216 bears at its upper end against the hand lever and tends normally to urge it into the position shown in FIG. 3. The lower end of the spring bears against a washer 220 backed by a nut 222 threaded on the lower end of the rod 218.

. At the beginning of a strip attaching operation the hand lever 212 is in the position shown in FIGS. 1 and 4, in which the latch 214 is in engagement with the bottom surface of a flange 224 at the lower end of the sleeve 200, at which time the edge gage 160 is in its extreme rearward position. In that position of the gage the insole I, shown in FIG. 6, which is for a left shoe, will be so located on the table 28 relative to the presser and feed foot 32 that the strip S will be attached to the insole from the starting point A, at the heel breast line at the inside margin of the insole, to point B, at the inside 'ball line, at some distance inward from the insole edge. The maximum and minimum distances at which the strip may be attached are varia'bly determinable by means of adjusting screws 226, 228 threaded through the disk 196 and adapted to engage a member 230 fixed to the bracket 202. When the operation reaches point B, the operator usually grasps the hand lever 212 and swings it to the left, or clockwise as viewed in FIGS. 2 and 4, to a positioned determined by engagement of the screw 228 with the member 230, in which position the latch 214 engages the left end of a recess 232 formed in the flange 224 of the sleeve 200 (see FIG. 4). Swinging of the hand lever to that position moves the edge gage forward on the table 23 to shift the insole laterally so as to cause the strip to be attached at or close to the insole edge along the ball portion B-C of the insole. The edge gage may -be maintained in the position to which it has been shifted, while the attaching operation proceeds around the toe portion of the insole and along the outside ball and shank portions, so that the strip will be attached substantially flush with the edge of the insole from point B to substantially near point E, as illustrated in FIG. 6. On the other hand, certain manufacturers sometimes prefer to space the rib strip a slight distance from the insole edge around the toe portion. Accordingly, when the attaching operation reaches point C, at the tip line of the insole, the operator may move the hand lever to the right or counterclockwise, to a position in which the latch 214 will engage the extreme right end of the recess 232 to move the edge gage rearward of the table into a position in which the strip will be attached at a slight distance from the insole edge around the toe portion of the insole as far as point D, which is located on the tip line along the outside margin of the insole. At that point the operator will turn the lever back to the left end of the recess 232 to move the edge gage to a position in which the strip will once more be attached at or close to the insole edge along the outside ball and shank portions DE. When the operation reaches point E the operator turns the hand lever back to its starting position at the extreme right, depressing the hand lever to move the latch 214 out of the recess 232, the position of the hand lever being determined by engagement of the screw 226 with the member 230, in which position the latch 214 again engages the bottom surface of the flange 224. By this movement of the hand lever the edge gage 160 is retracted to its starting position, in which the insole is located so as to cause the strip to be attached to. the outside shank portion E-F at a distance substantially corresponding to the distance at which the strip has been attached along the inside shank portion AB.

When the attaching operation reaches the point P at the breast line along the outside margin substantially in transverse alinement with the starting point A at the ball line along the inside margin, the operation of the presser and feed foot 32 is automatically stopped by mechanism substantially similar to that disclosed in the previously mentioned Patents Nos. 2,670,480 and 2,933,- I

744. The mechanism referred to comprises a pair of fingers 250, 252 (FIGS. 1, 4 and 5), which are normally maintained above the insole and which, shortly before the end of an attaching operation along the margin of the insole opposite that to which the strip is already attached, are moved into engagement with the top of the rib R of the strip at the last-named margin and remain in engagement therewith until the attaching operation reaches a point substantially in alinement with the starting point. In the case of the insole, illustrated in FIG. 6, the fingers engage the rib R when the attaching operation reaches point B and remain in engagement with it until the point F is reached.

The finger 250 is secured to a holder 254 (FIGS. 1 and 5) engaging in a groove provided in a bar 256 having a slot 258 through which extends a clamp screw 260 by which the holder 254 may be secured in adjusted position relative to the bar 256 to adjust the finger 250 forwardly or rearwardly with relation to the presser and feed foot 32 in accordance with the speed at which the foot is operated to feed the work. The bar 256 has a tongue-andgroove connection to one end of an arm 262, the other end ofwhich is fulcrumed on a pivot 264 mounted in a bracket 266 which is secured to the machine head. The bar 256 is adjustable heightwise relative to the arm 262 for adjustment of the finger 250' in the same direction with relation to the insole located on the table 28 and is secured in adjusted position by a clamp screw 268.

The finger 252 is adjustably mounted in an L-shaped holder 270 which is secured by a screw 272 to the forward end of an arm 274 fulcrumed on the pivot 264 with the arm 262, the arm 274 being maintained normally in parallel relation with the arm 262 by engagement of its under surface with a lug 276 extending, from the under surface of the arm 262, whereby the arm 274 may swing upwardly or downwardly in unison with the arm 262,

while the last-named arm is free to swing independently downward relative to the arm 274, for a purpose which will be presently explained. As illustrated in FIG. 1, the upper surface of the bar 256 carries a forwardly projecting lug 278, through which passes a wire 280, the lower end of which is attached to a block 282 located below the lug 278. The upper end of the wire 280 is connected to the lower end of an L-shaped hanger 284 fastened at its upper end by screws 286 to the lower end of a downwardly extending core or plunger 288 of a solenoid 290 (FIG. 8) mounted in a housing 292 (FIG. 1) fixed to the machine head. To the upper end of the solenoid plunger is secured a yoke 294 to which is anchored one end of a tension spring 296, the other end of which is anchored to the upper end of a vertical bracket 298 fixed to the machine head.

Until the solenoid 290 is energized its plunger 288 is held by the spring 298 in its raised position and, through the connections including the wire 280 between the plunger and the bar 256, maintains the two fingers 250, 252 in elevated positions above the insole supporting table 28. The solenoid 290 is energized by closure of a self: closing microswitch 300 (FIGS. 1, 3, 4 and 8) carried by the hand lever 212 by which the edge gage 160 is moved to shift the insole, as previously explained. The microswitch 300 is normally held open by engagement of its 308 to close.

V 8 spring pressed plunger 302 with an abutment screw 304 extending downwardly through a forwardly projecting arm 306 of the collar 208.

The hand lever 212 is held intially in the position shown in FIGS. 1 and 4, in which the latch 214 bears against the bottom surface of the flange 224 of the sleeve 200 which thus holds the hand lever depressed, so that the microswitch plunger 302 is out of contact with the screw 304. Although in that position the microswitch 300 is closed, the solenoid 290 is not energized at that time, due to the action of the relays in an electric circuit to be described shortly, so that the fingers 250, 252 are held in elevated positions. When the hand lever is shifted, as earlier explained, at points B, C, and D along the margin of the insole (see FIG. 6), the latch 214 engages in the recess 232 formed in the flange 224 and the spring 216 urges the hand lever upward, so that the microswitch plunger 302 contacts the screw 304 to open the switch. When the operator swings the hand lever at point E along the margin of the insole back to its extreme right, or starting position, where the latch 214 again engages the bottom surface of the flange 224, the microswitch plunger 302 is moved out of contact with the screw 304, whereupon the microswitch closes. Closure of the rnicroswitch at this time energizes the solenoid 290 and by downward movement of its plunger 288 the fingers 250, 252 are moved down upon the rib R of the strip attached to the insole at the beginning of the operation.

Referring to FiGS. l, 5, 7, and 8, the arm 274 to which the finger 252 is connected carries a self-closing microswitch 308 operated by an arm 310, the outer end of which carries a roll 312 engaging the top of the arm 262 to which the finger 250 is connected, to maintain the switch open. When the attaching operation reaches point F along the margin of the insole (FIG. 6), the outer finger 250 drops off the rib R and, by swinging out of engagement with the roll 312, causes the microswitch Closure of this switch energizes a solenoid 314 (FIGS. 1 and 8) mounted in a housing 316 fixed to the machine head. The core or plunger of the solenoid is connected to a rod 318 through which extends the upper treadle rod section 74, in a manner similar to that disclosed in our previously mentioned Patent No. 2,933,744. Energization of this solenoid causes its plunger to move to the left, as viewed in FIG. 1, and to pull the rod 318 in the same direction, against the tension of a spring 320 coiled about the outer end of the rod and, by moving the treadle rod section 74 also in the same direction, disengages the pawl 82 carried by this treadle rod section from the pawl on the upper end of the treadle rod section 76. The treadle rod section 74 is thereby freed to move up and, by swinging the lever 66 counterclockwise, disengage the clutch and stop the operation of the pi'esser and feed foot 32, even if the operator continues to hold the treadle depressed.

Closure of the microswitch 308 also energizes a solenoid 322 (FIG. 8) which, as in the machine of our prior Patent No. 2,933,744, is mounted in the base of the machine, and the plunger of which is connected to a knife 324 (FIG. 1) which is operated to sever the strip at the final attaching point F (FIG. 6).

The electric circuit which controls the operation of the various mechanisms described heretofore is illustrated in FIG. 8 and will now be briefly discussed by way of summarizing the manner in which the machine of the present invention is operated. It should be noted here that, as in the machine of our prior Patent No. 2,933,744 previously referred to, there is provided a selector switch 326 (FIG. 8) which, in one position provides for automatic energization of the solenoid 322 to operate the severing knife 324 and, in another position, connects the solenoid to a normally open, manually operated switch 328, which is provided as an auxiliary means to be used in the event of failure of the automatic circuit.

Assuming the selector switch 326 turned to the Automatic position shown in FIG. 8, when the operator turns the hand lever 212 (FIGS. 1 to 4) to its first three positions in which the latch 214 engages in the recess 232 provided in the flange 224, the microswitch 309' carried by the hand lever is opened. When, however, the hand lever is turned to its final position, which is also its starting position, when the attaching operation reaches point B along the margin of the insole (see FIG. 6), the microswitch closes. Current then flowing through this switch and normally closed contacts CR2B (FIG. 8) will energize the solenoid 290 to cause the fingers to engage the rib R of the insole at a point substantially opposite point B. The two fingers remain in engagement with the rib until the attaching operation reaches point F along the margin of the insole, which point is located substantially in transverse alinement with the starting point A. The outer finger 250 thereupon drops off the rib and, by swinging out of engagement with the roll 312 carried by the arm 310 which actuates the switch 308, causes this switch to close. Closure of the switch 308 energizes the coil of a relay CR4 and closes contacts CR4-A and CR4-B. Closure of contacts CR4-A energizes the coil of a relay CR3, closing contacts CR3-A and CR3-B and closure of contacts CR4B energizes the solenoid 314 to cause the treadle rod sections 74, 76 to be disconnected so as to disengage the clutch and stop the operation of the presser and feed foot 32.

Closure of the relay contacts CR3-B energizes the coil of a time delay relay TDS, closing a normally open switch TDS-A, thereby energizing the coil of a relay CR6 which controls the operation of the knife 324 so as to insure that it will cut through the rib and the attaching flanges of the strip. Energization of the relay coil CR6 closes contacts CR6-A, whereby the solenoid 322 is energized to operate the severing knife.

Closure of the microswitch 308 which effects the automatic feed stopping and the strip severing and the resulting energization of the relay CR3 also energizes the coil of a relay CR2 through the relay contacts CR3-A, closing relay contacts CR2-A and opening the normally closed contacts CRZ-B, thereby completing a holding circuit to maintain the rib engaging fingers in inoperative position until the microswitch 300" is opened in a succeeding operating cycle to maintain them in that position.

Thus, although in the starting position of the edge gage operating hand lever 212, the microswitch 30! carried by it is closed, no current can pass to energize the solenoid 290 and the fingers 250, 252 are maintained in their elevated position. At the end of a predetermined period of time, the time delay relay TDS is de-energized and the circuit reset to its original condition for a succeeding operating cycle.

Having described our invention, what we claim as new and desire to secure by Letters Patent of the United States is:

l. A machine for attaching strips to insoles comprising a support for an insole, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of the insole, to attach them to said margin and to feed the insole and attached strip, power means to operate the attaching and feeding means, means to locate each insole on the support in a predetermined position lengthwise relative to said attaching and feeding means to determine the point of attachment of the leading end of the strip, a knife to sever the strip at the point of attachment of its trailing end, means to reciprocate the knife, means movable into and out of engagement with the rib of the strip first attached along one side of the insole, means for moving said means into engagement with the rib at a determined time during the attachment of the strip along the opposite side of the insole, and means rendered operative in response to the movement of said rib engaging means out of engagement with the rib to render said power means inoperative thereby to stop the operation of the attaching and feeding 10 means and simultaneously to render said knife reciprocating means operative to cause the knife to sever the strip at the point of its final attachment.

2. A machine for attaching strips to insoles comprising a support for an insole, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of the insole, to attach them to said margin and to feed the insole and attached strip, power means to operate the attaching and feeding means, means to locate each insole on the support in a predetermined position lengthwise relative to the attaching and feeding means to determine the point of attachment of the leading end of the strip, a knife to sever the strip at the point of attachment of its trailing end, means to reciprocate the knife, means movable into and out of engagement with the rib of the strip first attached along one side of the insole, means for moving said means into engagement with the rib at a determined time during attachment of the strip along the opposite side of the insole, and means rendered operative in response to the movement of said rib engaging means out of engagement with the rib to render said power means inoperative thereby to stop the operation of the attaching and feeding means and simultaneously to render said knife reciprocating means operative to cause the knife to sever the strip substantially at a point on the insole determined by the location of the leading end of the strip.

3. A machine for attaching strips to insoles comprising a support for an insole, means operated to feed successive portions of a strip having an upstanding rib into engagement With the margin of the insole, to attach them to said margin and to feed the insole and attached strip, power means to operate the attaching and feeding means, means to locate each insole on the support in a predetermined position lengthwise relative to said attaching and feeding means to determine the point of attachment of the leading end of the strip, a knife to sever the strip at the point of attachment of its trailing end, means to recip rocate the knife, means movable into and out of engagement with the rib of the strip first attached along one side of the insole, means for moving said means into engagement with the rib at a determined time during attachment of the strip along the opposite side of the insole, and means rendered operative in response to the movement of said rib engaging means out of engagement with the rib to render the power means inoperative thereby to stop the operation of the attaching and feeding means and simultaneously to render the knife reciprocating means operative to cause the knife to sever the strip at a point substantially in transverse alinement with the point of attachment of the leading end of the strip.

4. A machine for attaching strips to insoles comprising a support for an insole, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of the insole, to attach them to said margin and to feed the insole and attached strip, power means to operate the attaching and feeding means, means to locate each insole on the support in a predetermined position lengthwise relative to said attaching and feeding means to determine the point of attachment of the leading end of the strip, a knife to sever the strip at the point of attachment of its trailing end, means to reciprocate the knife, a pair of members movable into and out of engagement with the rib of the strip first attached along one side of the insole at determined times during the attachment of the strip along the opposite side, means connected to said members and normally maintaining them in a position remote from the insole, an edge gage to position the insole transversely on the support with relation to the attaching and feeding means so as to determine the location of the strip relative to the insole edge, means to shift the edge gage during an attaching cycle into various positions to cause the strip to be attached at different distances from the insole edge along different portions of the insole, means actuated by movement of said edge gage shifting means into one of said various positions for rendering the meansconnected to the rib engaging members operative to cause said members to move into engagement With the rib, and means actuated in response to movement of one ofsaid members out of engagement with the rib to render the power means inoperative so as to cause the attachment of the strip to cease at a point substantially in transverse alinement with the point of attachment of the leading end of the strip and simultaneously to render the knife reciprocating means operative to cause the knife to sever the strip at the point of attachment of its trailing end.

5. A machine for attaching strips to insoles comprising a support for an insole, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of the insole, to attach them to said margin and to feed the insole and attached strip, power means to operate the attaching and feeding means, means to locate each insole on the support in a predetermined position lengthwise relative to saidv attaching and feeding means to determine the point of attachment of the leading end of the strip, a pair of members movable into and out of engagement with the ribof the strip first attached along one side of the insole at determined times during the attachment of the strip along the opposite side, means connected to saidmembers and normally maintaining them in a position remote from the insole, an edge gage to position the insole transversely on the support with relation to the attaching and feeding means so as to determine the location of the strip relative to the insole edge, means to shift the edge gage during an attaching cycle into various positions to cause the strip to be attached at difierent distances from the insole edge along different portions of the insole, means actuated by movement of said edge gage shifting means into one of said various positions for rendering the meansconnected to the rib engaging members operative to cause said members to move into engagement with the rib, and means actuated in response to movement of one of said members out of engagement with the rib to render the power means inoperative so as to cause the attachment of the strip to cease at a point substantially in transverse alinement with the point of attachment of the leading end of the strip.

6. A machine for attaching strips to insoles comprising a support for an insole, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of the insole, to attach them to said margin and to feed the insole and attached strip, power means including a clutch operating lever to impart operative movements to the attaching and feeding means, manually operated means to render said lever effective to initiate the operation of the, attaching and feeding means, automatic means to render said lever effective to stop the operation of the attaching and feeding means independently of said manually operated means, a knife to 'sever the strip, means to reciprocate said knife, means movable into and out of engagement with the rib of the strip first attached along one side of the insole, means for moving said means into engagement with the rib at a mine the point of attachment of the leading end of the strip, power means including a clutch operating lever to impart operative movements to the attaching and feeding means, manually operated means to render said lever effective to initiate the operation of said attaching and feeding means, automatic means to render said lever effective to stop the operation of the attaching and feeding means independently of said manually operated means, a knife to sever the strip, means to reciprocate the knife, means movable into and out of engagement with the rib of the strip first attached along one side of the insole, means for moving said means into engagement with the rib at a determined time during attachment of the strip along the opposite side of the insoie, and means actuated in response to the movement of said rib engaging means out of engagement with the rib when the attaching operation along said opposite side reaches a point substantially in transverse alinement with the point of attachment of the leading end of the strip to cause said automatic means to render said clutch operating lever efiective to stop the operation of the attaching and feeddetermined time during the attachment of the strip along the opposite side of the insole, and means actuated in response to the movement of said rib engaging means out of engagement with the rib to cause said automatic means to render said clutch operating lever effective to stop the operation of the attaching and feeding means, said means simultaneously rendering the knife reciprocating means operative to cause the knife to sever the attached strip at the point of its final attachment along said opposite side of the insole.

7. A machine for attaching strips to insoles compris ing a support for an insole, means operated to feed succe'ssive portions of a strip having an upstanding rib into engagement with the margin of the insole, to attach them to said margin and to feed the insole and attached strip, means to position the insole on the support lengthwise with relation to the attaching and feeding means to detering means, said means simultaneously rendering the knife reciprocating means operative to cause the knife to sever the attached strip at the point of its final attachment along said opposite side of the insole.

8. A machine for attaching strips to insoles comprising a support for an insole, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of the insole, to attach them to the insole margin and to feed the insole and attached strip, power operated means to impart operative movements to said attaching and feeding means, manual starting and stopping means to control the operation of said power operated means, means connecting said starting and stopping means to the power operated means, automatic means including a solenoid connected to said connecting means for rendering the power operated means inoperative independently of the starting and stopping means, means movable at determined times during an attaching cycle into and out of engagement with the rib of the strip first attached along one side of the insole, means for moving said means into engagement with the rib at said side of the insole at a determined time during the attachment of the strip along the opposite side, a microswitch closed in response to movement of the rib engaging means out of engagement with the rib to energize said solenoid and cause it to disconnected the starting and stopping means from the power operated means so as to stop the attaching operation at a point substantially in alinement with the starting point, a knife to sever the strip, means to reciprocate the knife, and means including a solenoid connected to the knife reciprocating means and energized by the closing of said microswitch to actuate said means to cause the knife to sever the strip at the point of its final attachment.

9. A machine for attaching strips to insoles comprising a support for an insole, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of the insole, to attach them to the insole margin and to feed the insole and attached strip, power operated means to impart operative movements to said attaching and feeding means, manual starting and stopping means to control the operation of said power operated means, means connecting said starting and stopping means to the power operated means, automatic means including a solenoid connected to said connecting means for rendering the power operated means inoperative independently of the starting and stopping means, means movable at determined times during an attaching cycle into and out of engagement with the rib of the strip first attached along one side of the insole, means for moving said means into engagement with the rib at said side of the insole at a determined time during the attachment of the strip along the opposite side, and a microswitch closed in response to movement of the rib engaging means out of engagement with the rib to energize said solenoid and cause it to disconnect the starting and stopping means from the power operated means so as to stop the attaching operation at a point substantially in alinement with the starting point.

10. A machine for attaching strips to insoles comprising an insole support, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of an insole on the support, to attach them to said margin and to feed the insole and attached strip, power operated means to impart operative movements to said attaching and feeding means, manually operated means for starting and stopping said power operated means, means to locate each insole on the support in a predetermined position lengthwise relative to the attaching and feeding means to determine the point of attachment of the leading end of the strip, means connecting said insole locating means to said starting and stopping means whereby said locating means is moved out of its operative position after locating an insole upon movement of the starting and stopping means to its perative position to initiate an operating cycle and is returned to its operative position upon movement of said starting and stopping means to its inoperative position, a pair of members movable into and out of engagement with the rib of the strip first attached along one side of the insole, means for moving said members into engagement with the rib at a determined time during attachment of the strip along the opposite side of the insole, means including a microswitch carried by one of said members and closed in response to movement of the other of said members out of engagement with the rib when the attaching operation reaches a point along said opposite side of the insole substantially in transverse alinement with the point of attachment of the leading end of the strip to render the power operated means inoperative independently of the manually operated starting and stopping ieans so as to cause the attaching operation to cease, a knife to sever the strip, means to reciprocate the knife, and means actuated by closure of said microswitch to cause the knife to severe the strip at the point of its final attachment.

11. A machine for attaching strips to insoles comprising an insole support, means operated to-feed successive portions of a strip having an upstanding rib into engagement with the margin of an insole on the support, to attach them to said margin and to feed the insole and attached strip, power operated means to impart operative movements to said attaching and feeding means, manually operated means for starting and stopping said power operated means, means to locate each insole on the support in a predetermined position lengthwise relative to the attaching and feeding means to determine the point of attachment of the leading end of the strip, means connecting said insole locating means to said starting and stopping means whereby said locating means is moved out of its operative position after locating an insole upon movement of the starting and stopping means to its operative position to initiate an operating cycle and is returned to its opera-tive position upon movement of said starting and stopping means to its inoperative position, an edge gage to position the insole transversely on the support with relation to the attaching and feeding means, means to shift the edge gage into various positions during a strip attaching cycle to cause the strip to be attached at different distances from the insole edge along difierent portions of the insole, means movable into and out of engagement with the rib first attached along one side of the insole at determined times during attachment of the strip along the opposite side, a solenoid connected to said rib engaging means and normally maintaining said means in a position remote from the insole, a microswitch closed in response to movement of said edge gage shifting means into its final position to energize said solenoid and cause it to move the rib engaging means into engagement with the rib of the strip, a second microswitch normally held open by engagement with the rib engaging means and closed in response to movement of said rib engaging means out of engagement with the rib when the attaching operation along said opposite side of the insole reaches a point substantially in transverse alinement with the point of attachment of the leading end of the strip to render the power operated means inoperative independently of the manually operated starting and stopping means so as to cause the attaching operation to cease, a knife to sever the strip, and means including a solenoid to reciprocate the knife, said solenoid being energized by the closing of said second microswitch to cause the knife to sever the strip at the point of its final attachment.

12. A machine for attaching strips to insoles comprising an insole support, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of an insole on the support, to attach them to said margin and to feed the insole and attached strip, power operated means to impart operative movements to said attaching and feeding means, manually operated means for starting and stopping said power operated means, means to locate each insole on the support in a predetermined position lengthwise relative to the attaching and feeding means to determine the point of attachment of the leading end of the strip, means connecting said insole locating means to said starting and stopping means whereby said locating means is moved out of its operative position after locating an insole upon movement of the starting and stopping means to its operative position to initiate an operating cycle and is re turned to its operative position upon movement of said starting and stopping means to its inoperative position, an edge gage to position the insole transversely of the support with relation to the attaching and feeding means, a hand lever to shift the edge gage to various positions during an attaching cycle to cause the strip to be attached at different distances from the insole edge along diflferent portions of the insole, a pair of members engageable with the rib of the strip first attached along one side of the insole at a determined time during attachment of the strip along the opposite side, a solenoid connected to said members and normally maintaining them in a position remote from the insole, a microswitch closed in response to movement of the lever to its final position to energize said solenoid and cause the rib engaging members to move into engagement with the rib, a second microswitch carried by one of said members and normally held open by engagement with the other of said members, said microswitch being closed in response to move ment of said other member out of engagement with the rib when the attaching operation reaches a point at said opposite side of the insole substantially in transverse alinement with the point of attachment of the leading end of the strip to render the power means inoperative independently of the manually operated starting and stopping means to cause the attaching operation to cease, a knife to sever the strip, and means including a solenoid to reciprocate the knife, said last named solenoid being energized by said second microswitch to cause the knife to sever the strip at the point of attachment of its trailing end.

13. A machine for attaching strips to insoles comprising an insole support, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of an insole on the support, to attach them to said margin and to feed the insole and attached strip, power operated means to impart operative movements to said attaching and feeding means, manual means for starting and stopping said power operated means, an edge gage to guide the insole during its feeding movement, a hand lever to shift the edge gage into various positions to cause the strip to be attached at different distances from the insole edge along different portions of the in- =15 sole, a pair of members movable into and out of engagement with the rib of the strip first attached along one side of the insole, means rendered operative incresponse to movement of said hand lever into one of said various positions to move said members into engagement with the ribwhen the attaching operation reaches a determined point along the opposite side of the insole, a microswitch carried by one of said members and closed in response to movement of the other of said members out of engagement with the rib at a point along said opposite side of the insole substantially in transverse alinement with the point of attachment of the leading end of the strip to render the power operated means inopera tive independently of the manual means so as to cause the attaching operation to cease, a strip severing knife, and a solenoid connected to the knife and energized by closing of said microswitch to'cause the knife to sever the strip at the point of its last attachment.

14. A machine for attaching strips to insoles comprising a support for an insole, means operated to feed successive portions of a strip having an upstanding rib into engagement with the margin of the insole, to attach them to said margin and to feed the insole and attached strip, power operated means for imparting operative movements to the attaching and feeding means, manual means to control the starting and stopping of the power operated means, a pair of members movable into and out of engagement with the rib of the strip first attached along one side of the insole at determined times during the attachment of the strip along the opposite side, means for moving said members into engagement with the rib, means including a microswitch carried by one of said members and closed in response to movement of the other member out of engagement with the rib at a, point along said opposite side of the insole substantially in transverse alinernent with the leading end of the attached strip, a knife, means to operate the knife, and means actuated in response to closing of said microswitch to operate the '16 knife to sever the strip at the point of its final attachment. 15. A machine for attaching ribbed strips to insoles to provide sewing ribs thereon comprising a support for an insole, means for feeding successive portions of a strip into engagement with the margin of the insole, for attaching them thereto and for feeding the insole and attached strip, power operated means for imparting operative movements to the attaching and feeding means, manual means for controlling said power operated means, automatic means to render said power operated means inoperative independently of said manual control means at a determined time during an attaching cycle, an edge gage to position the insole transversely on the support with relation to the attaching and feeding means, a hand lever for shifting said edge gage during an attaching cycle into difierent positions to cause the strip to be attached at different distances from the insole edge along difierent portions of the insole margin, means engageable with the rib of the strip first attached along one side of the insole, means actuated in response to movement of the edge gage shifting means to its final position when the attaching operation reaches a selected point along said opposite side of the insole to cause the rib engaging means to move into engagement with the rib, and means rendered operative in response to movement of said rib engaging means out of engagement with the rib at a point along said opposite side substantially in transverse alinement with the leading end of the attached strip to stop the operation of the attaching and feeding means at that point.

References Cited in the file of this patent UNITED STATES PATENTS 2,670,480 Clark Mar. '2, 1954 2,903,723 Hanson et a1. Sept. 15, 1959 r 2,932,834 Ridderstrom Apr. 19, 1960 2,933,744 Lotarski et al. Apr. 26, 1960 

